ENV - Environmental Science ENV 101 Chapter Notes - Chapter 6: Ethnobotany, Ecotourism, Anthropocentrism
21 Sep 2016
School
Department
Professor
GC 101 – Introduction of Environmental Science
Professor: Angela Miller-Porter
Chapter Six Notes: Wild Species and Biodiversity
6.1 The Value of Wild Species and Biodiversity
Biological Wealth: ecosystems capital that sustains human life and economic activity
with goods and services
Instrumental Value: its existence or use benefits some other entity (providing food,
shelter, etc.) * based on anthropocentric (human benefit)
Intrinsic Value: for its own sake / does not possess value but still has the right to life
Values:
➢ sources for food and raw materials
➢ sources are medicine and sciences
➢ recreational and aesthetics
➢ for its own sake
Genetic Bank: gene pools of all the species involved are deposited (wild relatives)
Ethnobotany: study of relationships between plants and humans (medicines)
Ecotourism: tourists visit a place in order to observe wild species or unique ecological
sites – largest foreign exchange generating enterprise.
6.2 Biodiversity and Its Decline
Endemic Species: found in only one habitat
Low Levels of Populations:
➢ vulnerable = threatened
➢ imperiled = endangered
➢ extinct = no longer present
HIPPO
H – Habitat Destruction
➢ 36% of know extinctions are due to habitat loss
➢ Conversion: natural areas are converted to farms, houses, marinas, industrials, etc.
➢ 38% of land on Earth is used for agricultural purposes
➢ Fragmentation: natural landscapes have large patches of habitat that are well
connected to other patches (breaking up land allows for only small populations)
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
6. 1 the value of wild species and biodiversity. Biological wealth: ecosystems capital that sustains human life and economic activity with goods and services. Instrumental value: its existence or use benefits some other entity (providing food, shelter, etc. ) Intrinsic value: for its own sake / does not possess value but still has the right to life. Genetic bank: gene pools of all the species involved are deposited (wild relatives) Ethnobotany: study of relationships between plants and humans (medicines) Ecotourism: tourists visit a place in order to observe wild species or unique ecological sites largest foreign exchange generating enterprise. 36% of know extinctions are due to habitat loss. Conversion: natural areas are converted to farms, houses, marinas, industrials, etc. 38% of land on earth is used for agricultural purposes. Fragmentation: natural landscapes have large patches of habitat that are well connected to other patches (breaking up land allows for only small populations) Edges: breaks between habitats that expose species to predators.
